Open cell body made of hard vinyl chloride resin

Details Open cell body made of hard vinyl chloride resin Open cell body made of hard vinyl chloride resin

1987-10-13

1989-01-24

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 88, 521 93, 521134, 521139, 521145, C08J 910

Patent

active

048002143

ABSTRACT:
An open cell body is made of hard vinyl chloride resin made by extruding a compound composition consisting essentially of a vinyl chloride resin made by a suspension polymerization method or a block polymerization method, an ultramacromolecular weight acrylic processing aid, joint use of an organic stabilizer containing a metal of the group I in the periodic table and an organic stabilizer containing a metal of the group II in the periodic table, or an organic composite stabilizer containing the both metals, joint use of an anionic surface active agent and a nonionic surface active agent, or joint use of an anionic surface active agent and a low polymerization degree polyolefin or waxes, a thermal decomposing organic blowing agent such as azodicarbonamide, and, as occasion demands, a powderly filler such as calcium carbonate.

REFERENCES:
patent: 3717595 (1973-02-01), Huntzinger et al.
patent: 3975315 (1976-08-01), Parks
patent: 4025465 (1977-05-01), Dorrn et al.
patent: 4226943 (1980-10-01), Tsurushige et al.
patent: 4427795 (1984-01-01), Dorrestijn et al.
patent: 4701472 (1987-10-01), Koebisu et al.

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